Key result
One lung ventilation resulted in a significantly higher arterial-end tidal carbon dioxide difference (8.9 mmHg) compared to two lung ventilation (6.1 mmHg), indicating it is less accurate for predicting arterial carbon dioxide tension.
Why the study?
Is PETCO2 during one lung ventilation as useful as during two lung ventilation for predicting PaCO2?
Observational (n=40)
No
Is PETCO2 during one lung ventilation as useful as during two lung ventilation for predicting PaCO2?
Absolute Event Rate: 8.9% vs 6.1%
p-value: p=0.0059
This study investigates whether end-tidal carbon dioxide tension is a reliable predictor of arterial carbon dioxide tension during one lung ventilation compared to two lung ventilation.
May warrant ABG confirmation during OLV; leaves open PETCO2 reliability for PaCO2 prediction in thoracic anesthesia.
Background: End-tidal carbon dioxide tension (PETCO2) is widely used to estimate arterial carbon dioxide tension (PaCO2) under various clinical conditions. This study was conducted to determine if PETCO2 during one lung ventilation (OLV) is as useful as PETCO2 during two lung ventilation (TLV) for predicting PaCO2.
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Jin et al. (2008) conducted an observational in Thoracic surgery (n=40). One lung ventilation vs. Two lung ventilation was evaluated on Arterial-end tidal carbon dioxide difference (Pa-ETCO2) (p=0.0059). One lung ventilation resulted in a significantly higher arterial-end tidal carbon dioxide difference (8.9 mmHg) compared to two lung ventilation (6.1 mmHg), indicating it is less accurate for predicting arterial carbon dioxide tension.
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